The Geologic Resources Section fulfills the traditional role of a state geological survey by collecting, interpreting and providing geologic information. The section has the responsibility for:

  • Providing maps and reports that identify, describe and classify surface and subsurface rocks, fractures and faults, landforms, surficial material characteristics, stratigraphy and paleontology;
  • Examining drill cuttings and core and preparing written and graphic logs that describe the geologic characteristics of the rock, along with its potential for water resources, minerals resources and environmental risk;
  • Developing information regarding the potential for geologic hazards including earthquakes, landslides and sinkhole collapse;
  • Determining the availability, quantity and quality of the metallic, industrial minerals and coal resources of the state;
  • Providing technical assistance and geologic information to those who are developing, marketing, managing or regulating the state's mineral resources;
  • Maintaining production and value records for minerals and energy commodities produced in the state;
  • Compiling and maintaining databases containing information on drill logs, described sections, mineral prospects, abandoned underground mines, geologic mapping and active mineral producers;
  • Maintaining a repository of nearly 3,000 drill core containing nearly 3 million feet of core; and
  • Conducting programs to improve the public's understanding of the geologic and mineral resources of the state and to increase the public's appreciation of geology and mining to our society.


Geologic Hazards

Geologic Maps

Mineral Resources

Industrial Minerals

Metallic Minerals

Mineral Fuels

Precambrian Drillhole Information - Operation Basement

In 1968, the Missouri Geological Survey established the Operation Basement program to address three objectives: a) to obtain drill hole and underground mining data relative to the structure and composition of the buried Precambrian basement; b) to expand Precambrian mapping and conduct research related to Precambrian geology and mineral resources; and c) to publish the results of the first two objectives in the Contribution to Precambrian Geology series. The database presented here represents the first of those objectives. It was originally compiled in close cooperation with exploration and mining companies operating in Missouri, who provided drillhole data, core and rock samples to MGS. MGS is continuing data collection and database compilation today as information becomes available, furthering our knowledge of the Missouri Precambrian basement.

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